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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Nov 2007 Posts: 31 New Guy | | New Guy Joined: Nov 2007 Posts: 31 | I'm looking at using a Performance Online disc brake conversion kit for the straight axle on my '52 GMC Sub.The kit seems to be pretty complete and after looking up prices on the individual parts the price seems fair. I'm fairly new at this so it will be a good place for me to start I think. Any advice/reaction to going this way? | | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | I recently used the same kit on my '54 GMC Suburban. Don't expect it to bolt right in. I had to separate and re-weld the MC bracket. I had to grind notches in the calipers for the caliper brackets to fit. I had to grind another place on the calipers to get the 16" wheels to fit. You can't use stock 15" wheels.
You might be able to use later 15" wheels. The stock wheels on my '83 Jimmy will fit on the CPP disc I have on my other '54 GMC.
The upside? They stop the burb easily. | | | | | Joined: Nov 2007 Posts: 31 New Guy | | New Guy Joined: Nov 2007 Posts: 31 | Cletis, are we talking major modifications? or just a little grinding and welding here and there?
Is the CPP kit a better option for someone just getting their feet wet? | | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | If you have a welder and body and bench grinders and know how to use them, go for it. I had similar problems with the CPP kit. But I think I like the CPP kit better. The problems I ran into on it are shown here. Scroll down. | | |
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